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Jean-Marc Odobez

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Publications associées (77)

Extracting Maya Glyphs from Degraded Ancient Documents via Image Segmentation

Jean-Marc Odobez, Daniel Gatica-Perez, Rui Hu

We present a system for automatically extracting hieroglyph strokes from images of degraded ancient Maya codices. Our system adopts a region-based image segmentation framework. Multi-resolution super-pixels are first extracted to represent each image. A Su ...

2017

CRF-Based Context Modeling for Person Identification in Broadcast Videos

Jean-Marc Odobez, Paul Gay

2016

Deep Dynamic Neural Networks for Multimodal Gesture Segmentation and Recognition

Jean-Marc Odobez, Di Wu

2016

Learning Multimodal Temporal Representation for Dubbing Detection in Broadcast Media

Jean-Marc Odobez

Person discovery in the absence of prior identity knowledge requires accurate association of visual and auditory cues. In broadcast data, multimodal analysis faces additional challenges due to narrated voices over muted scenes or dubbing in different langu ...

ACM2016

Towards building an attentive artificial listener: on the perception of attentiveness in audio-visual feedback tokens

Jean-Marc Odobez, Kenneth Alberto Funes Mora, Yu Yu, Catharine Regina Monika Maria Oertel Genannt Bierbach

Current dialogue systems typically lack a variation of audio-visual feedback tokens. Either they do not encompass feedback tokens at all, or only support a limited set of stereotypical functions. However, this does not mirror the subtleties of spontaneous ...

ACM2016

Evaluating Shape Representations for Maya Glyph Classification

Jean-Marc Odobez, Daniel Gatica-Perez, Gülcan Can

Shape representations are critical for visual analysis of cultural heritage materials. This article studies two types of shape representations in a bag-of-words-based pipeline to recognize Maya glyphs. The first is a knowledge-driven Histogram of Orientati ...

2016

Gaze Estimation in the 3D Space Using RGB-D Sensors

Jean-Marc Odobez, Kenneth Alberto Funes Mora

We address the problem of 3D gaze estimation within a 3D environment from remote sensors, which is highly valuable for applications in human-human and human-robot interactions. To the contrary of most previous works, which are limited to screen gazing appl ...

Springer2016

Training on the Job: Behavioral Analysis of Job Interviews in Hospitality

Laurent Son Nguyen, Jean-Marc Odobez, Daniel Gatica-Perez, Skanda Muralidhar, Denise Frauendorfer

First impressions play a critical role in the hospitality industry and have been shown to be closely linked to the behavior of the person being judged. In this work, we implemented a behavioral training framework for hospitality students with the goal of i ...

Assoc Computing Machinery2016

Long-Term Time-Sensitive Costs for CRF-Based Tracking by Detection

Jean-Marc Odobez, Alexandre Heili

We present a Conditional Random Field (CRF) approach to tracking-by-detection in which we model pairwise factors linking pairs of detections and their hidden labels, as well as higher order potentials defined in terms of label costs. Our method considers l ...

Springer Int Publishing Ag2016

Klewel Webcast: from Research to Growing Company

Alessandro Vinciarelli, Jean-Marc Odobez, Sandy Ingram

The main motivations behind the webcasting company, Klewel, were to go beyond text-based conference proceedings to offer a user-friendly way to browse and replay presentations, access slides, and search for specific information within a recording. As the p ...

2015

Temporal Analysis of Motif Mixtures using Dirichlet Processes

Jean-Marc Odobez, Jagannadan Varadarajan, Rémi Emonet

In this article, we present a new model for unsupervised discovery of recurrent temporal patterns (or motifs) in time series (or documents). The model is designed to handle the difficult case of multivariate time series obtained from a mixture of activitie ...

2014

Exploiting Long-Term Connectivity and Visual Motion in CRF-based Multi-Person Tracking

Jean-Marc Odobez, Alexandre Heili

We present a conditional random field approach to tracking-by-detection in which we model pairwise factors linking pairs of detections and their hidden labels, as well as higher order potentials defined in terms of label costs. To the contrary of previous ...

2014

Automatic Maya Hieroglyph Retrieval Using Shape and Context Information

Jean-Marc Odobez, Daniel Gatica-Perez, Rui Hu

2014

Leveraging Colour Segmentation for Upper-Body Detection

Jean-Marc Odobez

This paper presents an upper-body detection algorithm that extends classical shape-based detectors through the use of additional semantic colour segmentation cues. More precisely, candidate upper-body image patches produced by a base detector are soft-segm ...

2014

Pass-by noise acoustic sensing for estimating speed and wheelbase length of two-axle vehicles

Xavier Falourd, Hervé Lissek, Jean-Marc Odobez, Patrick Marmaroli

This paper focuses on acoustic road traffic monitoring and looks, more specifically, into the problem of speed and wheelbase length estimation of two-axle vehicles as they pass by. It is known that both front and rear axle trajectories may be dissociated u ...

2013

Observation of Vehicle Axles Through Pass-by Noise: A Strategy of Microphone Array Design

Xavier Falourd, Hervé Lissek, Jean-Marc Odobez, Patrick Marmaroli

This paper focuses on road traffic monitoring using sounds and proposes, more specifically, a microphone array design methodology for observing vehicle trajectory from acoustic-based correlation functions. In a former work, authors have shown that combinin ...

IEEE Institute of Electrical and Electronics Engineers2013

A Track Creation and Deletion Framework for Long-Term Online Multi-Face Tracking

Jean-Marc Odobez

To improve visual tracking, a large number of papers study more powerful features, or better cue fusion mechanisms, such as adaptation or contextual models. A complementary approach consists of improving the track management, that is, deciding when to add ...

2013

A Sequential Topic Model for Mining Recurrent Activities from Long Term Video Logs

Jean-Marc Odobez, Jagannadan Varadarajan, Rémi Emonet

This paper introduces a novel probabilistic activity modeling approach that mines recurrent sequential patterns called motifs from documents given as word×time count matrices (e.g., videos). In this model, documents are represented as a mixture of sequenti ...

Springer2013

Real-Time Audio-Visual Analysis for Multiperson Videoconferencing

Hervé Bourlard, Jean-Marc Odobez, Petr Motlicek, Danil Korchagin

We describe the design of a system consisting of several state-of-the-art real-time audio and video processing components enabling multimodal stream manipulation (e.g., automatic online editing for multiparty videoconferencing applications) in open, uncons ...

2013

Investigating the midline effect for visual focus of attention recognition

Jean-Marc Odobez, Samira Sheikhi

This paper addresses the recognition of people’s visual focus of attention (VFOA), the discrete version of gaze indicating who is looking at whom or what. In absence of high def- inition images, we rely on people’s head pose to recognize the VFOA. To the c ...

ACM2012

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